Voracious, invasive zebra mussels hopped an upstream ride over the summer and added 100 miles of Colorado River to their fast-growing infestation of state waterways, Parks and Wildlife officials said after a recent multiagency, multicounty sampling. Previously pegged in the Grand Junction area, the Oct. 29 sampling and subsequent analysis found adult zebra mussels upstream in Glenwood Canyon and all the way up to the Colorado River’s junction with the Eagle River at Dotsero, near a private lake treated for zebra mussels in August. 

Other invasive species news:

• Westlands Water District: News release: Golden mussels detected in Westlands
• UC ANR: Blog: Invasive species: nature’s troublemakers